Thursday May 6, 2021

Stand off injectors / topfeed injection - what is it?

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Side feed Injector 3 e1584347051137 Stand off Injectors / Topfeed Injection what is it?

Stand off injectors act as a second injector set and are used primarily at high speeds. The injectors should be installed at an optimal distance from the valve. The further the injector is from the valve, the better the atomization of the fuel. What stand-off injectors are used for and what is the difference between a topfeed injection and a side feed injection is explained below.

Stand off Injectors - what are these good for?

Side feed Injector 4 e1584347233674 Stand off Injectors / Topfeed Injection what is it?

Stand-off injectors, depending on the spray pattern, help inject more fuel or, at the right speeds, inject substances such as methanol, ethanol, nitrous oxide or certain substance mixtures. What stand-off injectors are used for depends on the intended use. Stand off injectors are interesting for tuners and racing drivers and are used for example in racing cars. Stand-off injectors are often used as a second injector set and, for example, with side feed injectors as the first set. In addition to stand-off injectors and side feed injectors, top feed injectors are also available. Side feed injectors and top feed injectors are presented in more detail below.

Side feed injectors vs. Top feed injectors

Side feed Injector Top feed Stand off Injectors / Topfeed Injection what is it?

Side feed and top feed injectors are the two main types that are used as fuel injectors in car engines. Top feed injectors are preferred by tuners and in most cases there are therefore top feed injectors in the cars. But there are also interesting motors with side feed injectors and in the tuning area there are some forums where a recommendation to upgrade to top feed injectors is recommended. Top feed injectors sit under the fuel rail, while side feed injectors fit in the fuel rail. Top feed injectors cannot be exchanged with side feed injectors. If you want to upgrade from side feed to top feed injectors, you usually have to change the distributor. With side feed injectors, the fuel is introduced through a slot in the side. Side feed injectors have a better cooling effect because, unlike top feed injectors, they sit in the fuel rail. For top feed variants, the fuel, as the name suggests, is entered from the top.

What are the advantages of top feed injectors?

Top feed injectors can be exchanged at a lower cost than side feed variants. For example, larger injectors can be installed. Furthermore, the fuel pressure with top feed injectors is more stable. Large 2000cc injectors can also be used. If you have side feed injectors in your vehicle and want to upgrade to top feed variants, you should visit an expert tuning workshop. This can determine the exact cost of the conversion and also order and install the appropriate automotive parts. Top feed injectors are already installed in most vehicles and can be replaced by larger versions.

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